Rock Climbing Calories Burned Calculator

Rock Climbing Calories Formula

This calculator estimates energy use with metabolic equivalents, or METs. One MET represents resting energy expenditure. The selected climbing style supplies an active MET value, while optional nonclimbing time is modeled separately at 1.5 MET.

active kcal = active MET × body weight in kg × active hours
rest kcal = 1.5 × body weight in kg × rest hours
gross kcal = active kcal + rest kcal
above-rest kcal = (active MET - 1) × kg × active hours + 0.5 × kg × rest hours

Gross calories include the energy the body would have used at rest. Above-rest calories subtract that one-MET baseline. Fitness trackers and exercise databases often display gross energy, so the large result uses gross calories and the detail table also reports the above-rest estimate.

Active Time, Vertical Distance, and Target Time

Workflow	Required entries	What the calculator does
Active time	Weight, style, active minutes or hours	Applies the selected active MET for the entered wall time
Vertical distance	Weight, style, distance, user-entered ascent rate	Divides distance by ascent rate to estimate active minutes, then applies the MET formula
Target calories	Weight, style, gross-calorie target	Rearranges the active MET equation to solve for active time

The vertical workflow does not invent a universal climbing speed. Enter an average upward rate that fits the route, terrain, and how you recorded vertical distance. The calculation converts distance and rate to the same unit before dividing them. Optional rest time can be added to the active-time and vertical workflows, but it remains a separate low-intensity component.

Climbing Style Assumptions

Style	Active MET	Intended use
Bouldering	8.8	Compendium 15534, rock climbing, free boulder
Rock climbing, general (top-rope or lead)	8.0	Compendium 15533, rock or mountain climbing
Hard routes	7.3	Compendium 15535, ascending rock, high difficulty
Easy-to-moderate routes	5.8	Compendium 15537, low-to-moderate difficulty
Speed climbing	10.5	Compendium 15536, speed climbing, very difficult
Optional rest	1.5	Belaying, standing, or low-intensity nonclimbing time

Use the bouldering style here only when active movement time is known. For an intermittent indoor gym visit where attempts and rests are mixed together, the dedicated indoor bouldering session calculator linked in the related section provides whole-session and measured active/rest workflows.

Worked Example

Suppose a 70 kg climber top-ropes 1,000 vertical feet at an entered average ascent rate of 20 feet per minute and records 10 minutes of rest. Active time is 1,000 ÷ 20 = 50 minutes. Active gross energy is 8.0 × 70 × 50 ÷ 60 = 466.7 kcal. Rest energy is 1.5 × 70 × 10 ÷ 60 = 17.5 kcal. The combined gross estimate is 484.2 kcal.

Limits of a MET Estimate

MET values are population-level reference values, not a direct measurement of your metabolism. Technique, wall angle, holds, load carried, temperature, fatigue, and individual physiology can shift actual energy use. Treat the result as a planning estimate. A wearable or laboratory measurement may still use a different method and produce a different number.

Frequently Asked Questions

Should belaying count as active climbing?
No. Put it in optional rest or nonclimbing time if you want it included. Keeping it separate prevents the active climbing MET from being applied to the entire outing.

Why does the target-calorie workflow omit rest?
It solves the active climbing equation directly, so the result is active wall time for the selected style. It does not prescribe a workout or predict how long the full outing will take.

Sources

• Herrmann and colleagues — 2024 Adult Compendium of Physical Activities, third update of the energy costs of human activities (climbing MET values used by the calculator).
• Ainsworth and colleagues — 2011 Compendium of Physical Activities, second update of codes and MET values.